Finding the Fourth Proportional to 316,939.24, 475,426.18 and 80,283.96
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Solution
The fourth proportional to 316,939.24, 475,426.18 and 80,283.96 is: 120,430.33
Step by Step Solution
- Step 1: Write the proportion equation
316,939.24 : 475,426.18 = 80,283.96 : x - Step 2: Convert to fraction form
316,939.24/475,426.18 = 80,283.96/x - Step 3: Cross multiply
316,939.24x = 475,426.18 × 80,283.96 - Step 4: Simplify right side
316,939.24x = 38,169,096,418.07 - Step 5: Solve for x
x = 38,169,096,418.07/316,939.24 - Step 6: Final answer
x = 120,430.33
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.